Known issues

Unresolved known issues

Known issue with an Unresolved Resolution state is an active problem under investigation; a temporary workaround may be available.

Resolved known issues

A known issue with a Resolved (workaround) Resolution state is an ongoing problem; a permanent workaround is available which may include using different software or hardware.

A known issue with Resolved Resolution state has been corrected.

Known Issues

Title Category Resolutionsort descending Description Posted Updated
Armstrong offline until Noon Resolved

Armstrong will need to be taken down today until Noon.  In the meantime, contact OSCHelp (OSCHelp@osc.edu) for account assistance.

12 years 1 month ago 12 years 1 month ago
A partial-node MPI job failed to start using Intel MPI mpiexec Owens, Pitzer, Software Resolved
(workaround)

A partial-node MPI job may fail to start using mpiexec from intelmpi/2019.3 and intelmpi/2019.7 with error messages like

[mpiexec@o0439.ten.osc....
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5 years 11 months ago 1 year 4 months ago
Switch failure on Nov 17 2018 filesystem, login Resolved

Updates at 12:51 PM Nov 19:

At about 5:00 am on November 18th, OSC experienced another major switch failure. As of noon Nov 18, all services have been fully restored. In...

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7 years 10 months ago 7 years 10 months ago
Matlab parallel pool cannot connect Matlab, Pitzer Resolved

In some cases, matlab would hang with connecting to parallel pool on Pitzer. This was discovered in the 2026 January downtime. In order to mitigate this we have introduced the "current"...

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9 months 5 days ago 5 months 3 weeks ago
OpenMPI 4 and NVHPC MPI Compatibility Issues with SLURM HWLOC Ascend, Cardinal, Software Resolved
(workaround)

A pure MPI application using mpirun or mpiexec with more ranks than the number of NUMA nodes may encounter an error similar to the following:...

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1 year 6 months ago 1 year 3 months ago
Glenn Intel v11 and later do not support -mkl flag Software Resolved

Intel compiler versions 11 and later on Glenn do not support the -mkl compiler options.  Contact oschelp@osc.edu...

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10 years 8 months ago 10 years 1 month ago
Interruption of both Project and Scratch filesystems on 10/13/2016 filesystem Resolved

We experienced a brief interruption of both Project and Scratch filesystems at about 5:15PM October 13, 2016. User jobs may have been effected.

We'll update more details later. 

9 years 12 months ago 9 years 12 months ago
Possible performance degradation after August 9th's downtime filesystem Resolved

Updates on May 20 2023:

verbsRDMA is enabled on Pitzer. 

Updates on Dec 14 2022:

verbsRDMA is enabled on Owens during December 13 downtime...

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4 years 2 months ago 3 years 4 months ago
Proj13 file system difficulties filesystem Resolved

We are currently experiencing difficulties with the servers for the filesystem mounted at /nfs/proj13.

13 years 15 hours ago 13 years 11 hours ago
GPFS problems on Owens filesystem Resolved

Owens is experiencing a disruption of GPFS availability. At about 4:17PM today (January 6th), OSC monitoring noticed a problem with mounts of Project on the Owens supercomputer. Jobs may have been...

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6 years 9 months ago 6 years 9 months ago

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